University of Cambridge > > HEP phenomenology joint Cavendish-DAMTP seminar > The hunt for non-resonant signals of new physics at the LHC

The hunt for non-resonant signals of new physics at the LHC

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If you have a question about this talk, please contact Maeve Madigan.

10 years after the discovery of the Higgs boson, the LHC is gearing up for two more decades of operations, during which it will evolve into a precision machine. Amidst a shortage of particle discoveries, precision will allow the implementation of new strategies to search for new physics, aiming for non-resonant signals. This is the main motivation underlying the huge development in Effective Field Theory (EFT) methods that has been taking place in the past decade. In particular, the Standard Model EFT (SMEFT) is now established as the preferred framework for non-resonant searches of heavy new particles. Significant progress has been made on both the theory and experimental sides, towards enabling a comprehensive campaign of SMEFT measurements at the LHC . At the same time, non-resonant signals could also help shedding light onto quite different scenarios: in some cases, they can be produced even in the presence of light new physics, such as Axion-Like Particles (ALPs). The talk will broadly discuss the role played by non-resonant searches in the quest for new physics, giving first an overview of the status of the SMEFT program, and presenting in the second part a concrete example of non-resonant signals induced by ALPs. The interplay with resonant/direct searches will be discussed for both cases, and I will briefly present the challenges and prospects for the upcoming LHC Run 3.

This talk is part of the HEP phenomenology joint Cavendish-DAMTP seminar series.

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